I'm sure Tammy and Victor are Chinese like Ronald and Christina... (those Mandarin spoken on the China legs) but I remembered reading from somewhere that are from Korea as well. Ronald and Christina are indeed from Taiwan though.

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--- Quote ---People would be surprised to learn: I was born in Taiwan and speak fluent Mandarin Chinese --- End quote ---

http://amazingrace.wikia.com/wiki/Joe_&_Heidi

I saw somewhere on the internet that mentioned that Tammy & Vic has Taiwanese ancestry (but could be wrong).

SamualDude:
What if David & Mary managed to beat Bama to the Pitstop in Leg 8 of TAR 10?

Declive:

--- Quote from: SamualDude on July 24, 2013, 02:07:50 AM ---What if David & Mary managed to beat Bama to the Pitstop in Leg 8 of TAR 10?

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David and Mary get the next boot and than the Cho bros have a great chance on winning.